Possums, often encountered in backyards and urban environments, sometimes leave behind a noticeable odor. These marsupials do release various scents, which serve different purposes in their natural behavior and defense mechanisms. Understanding when and why these odors occur can help clarify common observations.
Understanding Possum Scent
Possums possess specialized glands that produce and release distinct scents. The most prominent source of a strong odor comes from their anal glands, located near the anus. These glands secrete a fluid, particularly when the animal feels threatened or distressed. Possums also have other scent glands, such as sternal or chest glands, and utilize urine and feces for communication.
Triggers for Odor Release
The release of scent by possums is linked to specific behavioral or environmental triggers. A primary reason is self-defense, particularly when a possum “plays dead,” an involuntary physiological response to extreme fear. During this comatose-like state, a foul-smelling fluid is secreted from their anal glands, mimicking the scent of a decaying animal to deter predators. Possums also use scent to mark their territory, with both males and females rubbing chest glands on objects to establish their presence. During mating season, females release specific scents to attract mates, while males may use scent marking to signal their reproductive status.
What the Smell is Like
The odor released by possums can vary in intensity and character depending on its source and purpose. The defensive secretion from the anal glands is often described as musky, pungent, and unpleasant. It can be compared to the smell of rotten eggs, garlic, or even burning tires, and some describe it as similar to decaying flesh. While not as potent or far-reaching as a skunk’s spray, it is still distinctly off-putting. Additionally, possum urine can produce a strong, offensive odor, sometimes likened to male cat spray, particularly when it accumulates in an area.
Managing Possum Odors
When possum odors become a nuisance around a property, several humane approaches can help manage the situation. If a possum has taken up residence, removing accessible food sources like pet food, fallen fruit, or unsecured garbage can encourage them to move on. Cleaning areas affected by urine or defensive secretions with solutions like baking soda and water, or enzymatic cleaners, can help neutralize the smell. To deter possums from specific areas, strong scents they dislike, such as peppermint oil, cayenne pepper, garlic, or citrus peels, can be used as repellents. Motion-activated sprinklers can also provide a harmless deterrent by startling the animals.